Interesting to see several L2s are now below 1c for transactions. We focused on that price for a while as a competition metric, but now that we're below 1c, is it still worth looking at? What's the next interesting metric? Non-token TVL?

Governance nerd. 
Building cool stuff at Snapshot.

How about voting systems for allocating funds?

next metric would probably be actual unique users utilising the protocol/chain (i think)

and watching which chains/protocols can effectively grab the largest amount of attention amd distribution.